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Halos On Mars?
Guest_RGClark_*
post Mar 10 2005, 07:35 PM
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Guests
Is it believed the Spirit Navcam images on this page show actual halos or is it just an optical artifact:

MER Spirit: Sol 345.
http://mars.lyle.org/bysol/2-345.html

This page has examples and explanations of halos caused by ice crystals on Earth:

Frequent Halos.
http://www.sundog.clara.co.uk/halo/common.htm


If the Navcam images are real halos that might suggest there were thin non-visible ice water clouds over the Spirit site as were the visible cirrus clouds seen over Meridiani.

Liquid water droplets can also form halos:

Fogbow.
http://www.sundog.clara.co.uk/droplets/fogbow.htm

Are there differences between the halos caused by ice and liquid water?


Bob Clark
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Posts in this topic
- RGClark   Halos On Mars?   Mar 10 2005, 07:35 PM
- - djellison   Thats just internal reflection/refraction on the c...   Mar 10 2005, 07:43 PM

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